Im a bit confused regarding my latest find on the 996. Its a -99 model with 180k miles on it. Engine was replaced within two years from new, so could be a tad less.
When I changed the oil before winter hibernation I cut the filter open and looked for debris (my first oil change with this car). I also looked at the oil filter housing and the oil itself. It had 1 year and 6000miles since last oil change.
The filter was fairly clean with a few small shavings (less than 10 in the whole filter) and the housing was clean. The oil on the other hand had more glitter in it.
To me it seems a bit odd… If there were a lot of debris, it should be collected by the filter? How should I proceed? The car uses little to no oil and runs fine. No knocking, but a very small occasional rattle on the 1,2,3 side on hot idle that sounds like a loose variocam or maybe timing chain. 1 second chain rattle on cold startup 1 out of 5 times…
IMS could be an issue at these miles even beeing dubbel row, but then again at these miles everything could be an issue
My plan was initially to run it for 100 miles or so and do a second oil change, but maybe its stupid to risk it and instead prepare for a more thorough job. Engine out, checking IMS and boroscoping the liners. If not IMS, time for rebuild?
When I changed the oil before winter hibernation I cut the filter open and looked for debris (my first oil change with this car). I also looked at the oil filter housing and the oil itself. It had 1 year and 6000miles since last oil change.
The filter was fairly clean with a few small shavings (less than 10 in the whole filter) and the housing was clean. The oil on the other hand had more glitter in it.
To me it seems a bit odd… If there were a lot of debris, it should be collected by the filter? How should I proceed? The car uses little to no oil and runs fine. No knocking, but a very small occasional rattle on the 1,2,3 side on hot idle that sounds like a loose variocam or maybe timing chain. 1 second chain rattle on cold startup 1 out of 5 times…
IMS could be an issue at these miles even beeing dubbel row, but then again at these miles everything could be an issue

My plan was initially to run it for 100 miles or so and do a second oil change, but maybe its stupid to risk it and instead prepare for a more thorough job. Engine out, checking IMS and boroscoping the liners. If not IMS, time for rebuild?